The phrase "works oneself bone" implies working extremely hard and putting in a lot of effort. However, there are many antonyms that convey the opposite meaning, including "slacks off," "procrastinates," "idles," "shirks," "loafs," and "puts off." These words signify laziness and lack of effort, instead of hard work and determination. Other antonyms include "relaxes," "enjoys leisure," "rests," "takes it easy," and "has a good time." While these words might be associated with laziness, it is important to remember that rest and relaxation are also crucial for maintaining a healthy work-life balance.